Impact of Hepatitis B Vaccination Among Children in Guangdong Province, China

Int J Infect Dis. 2012 Sep;16(9):e692-6. doi: 10.1016/j.ijid.2012.05.1027. Epub 2012 Jul 13.

Abstract

Objective: To evaluate the impact of the universal infant hepatitis B vaccination program on hepatitis B virus (HBV) infection in Guangdong Province, China.

Methods: In 2006, a serosurvey was conducted in Guangdong Province among children aged <15 years, 14 years after the introduction of universal infant hepatitis B vaccination. The participants were selected by stratified, multi-stage random sampling. Demographic characteristics and hepatitis B vaccination history were collected by a questionnaire and a review of the vaccination records, and serum specimens were tested for hepatitis B surface antigen (HBsAg), antibody to hepatitis B core antigen (anti-HBc), and antibody to hepatitis B surface antigen (anti-HBs) by ELISA. The prevalence rate of HBV serological markers and the rate of immunization coverage in this survey were compared with those of the 1992 and 2002 surveys.

Results: A total of 1967 children aged <15 years participated in 2006. The prevalence rate of HBsAg decreased from 19.86% in the 1992 survey to 4.91% in the 2006 survey. The rates of three-dose and timely birth dose coverage of hepatitis B vaccine were 92.40% and 70.84%, respectively, among children born during the period 2002-2005. The prevalence of HBsAg was significantly lower among fully immunized children (1.99%) than among unvaccinated children (5.56%).

Conclusions: Guangdong Province has successfully integrated the hepatitis B vaccine into routine immunization programs and this has had a very significant impact on decreasing the HBsAg carrier rate among children.

Publication types

  • Comparative Study

MeSH terms

  • Adolescent
  • Child
  • Child, Preschool
  • China / epidemiology
  • Cross-Sectional Studies
  • Female
  • Hepatitis B / blood
  • Hepatitis B / epidemiology
  • Hepatitis B / immunology
  • Hepatitis B / prevention & control*
  • Hepatitis B Antibodies / blood*
  • Hepatitis B Surface Antigens / blood*
  • Hepatitis B Vaccines / administration & dosage*
  • Hepatitis B virus / immunology
  • Hepatitis B virus / isolation & purification*
  • Humans
  • Immunization
  • Infant
  • Male
  • Rural Population
  • Seroepidemiologic Studies
  • Surveys and Questionnaires
  • Urban Population

Substances

  • Hepatitis B Antibodies
  • Hepatitis B Surface Antigens
  • Hepatitis B Vaccines